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NXP P82B96 Dual bi-directional bus buffer User Guide and Manual

Summary

This dual bi-directional bus buffer IC provides robust logical interfacing for sophisticated system designs. It is designed to manage I²C bus signals while offering advanced capabilities for voltage level shifting, galvanic isolation, or driving complex multi-drop buses. The manual details the pin configurations, ensuring reliable signal integrity across different logic levels (2V to 15V), and demonstrates its use in applications requiring stable communication between disparate electrical domains. Ideal for electronics engineers building systems that connect varying bus standards or require noise immunity on long lines.

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INTEGRATED CIRCUITS

P82B96 Dual bi-directional bus buffer

Product data 2004 Mar 29 Supersedes data of 2003 Apr 02

Page Summary Contents For NXP P82B96 Dual bi-directional bus buffer User Guide and Manual

Page 1 INTEGRATED CIRCUITS P82B96 Dual bi-directional bus buffer Product data 2004 Mar 29 Supersedes data of 2003 Apr 02
Page 2 Philips Semiconductors Product data P82B96Dual bi-directional bus buffer PIN CONFIGURATIONS 8-pin dual in-line, SO, TSSOP 8Sx VCC Rx Sy Tx Ry FEATURES GND Ty Bi-directional data transfer of I2C-bus si...
Page 3 Philips Semiconductors Product data P82B96Dual bi-directional bus buffer ORDERING INFORMATION PACKAGES TEMPERATURE RANGE ORDER CODE TOPSIDE MARK DRAWING NUMBER 8-pin plastic dual In-line package –40 °...
Page 4 Philips Semiconductors Product data P82B96Dual bi-directional bus buffer MAXIMUM RATINGS In accordance with the Absolute Maximum Rating System (IEC 134). Voltages with respect to pin GND (pin 4). ÁÁÁÁ...
Page 5 Philips Semiconductors Product data P82B96Dual bi-directional bus buffer SYMBOL PARAMETERÁÁÁÁ CONDITIONSÁÁÁÁÁÁÁÁÁÁ MIN.ÁÁÁÁÁÁÁÁÁ TYP.ÁÁÁ MAX.ÁÁ UNITÁÁ Input logic switching threshold voltages ÁÁÁÁ ÁÁÁ...
Page 6 Philips Semiconductors Product data P82B96Dual bi-directional bus buffer TYPICAL APPLICATIONS See AN460 and AN255 for more application detail. +VCC (2–15 V) ‘SDA’ (NEW LEVELS) Tx (SDA) Rx (SDA) 1/2 PB...
Page 7 Philips Semiconductors Product data P82B96Dual bi-directional bus buffer VCC1 +V CABLE DRIVE +V CABLE DRIVE BC 847B RX RX 3 – 20 m CABLES SX TX TX SX SCL SCL I2C/DDC RY I2C/DDC MASTER I2C/DDC SLAVE SY...
Page 8 Philips Semiconductors Product data P82B96Dual bi-directional bus buffer frequency will be lower than calculated from the programmed clock Note that in both the 100-meter and 250-meter examples the pe...
Page 9 Philips Semiconductors Product data P82B96Dual bi-directional bus buffer CALCULATING SYSTEM DELAYS AND BUS CLOCK FREQUENCY FOR A FAST MODE SYSTEM LOCAL MASTER BUS BUFFERED EXPANSION BUS REMOTE SLAVE B...
Page 10 Philips Semiconductors Product data P82B96Dual bi-directional bus buffer LOCAL MASTER BUS BUFFERED EXPANSION BUS REMOTE SLAVE BUS VCCM VCCB VCCS Rm Rb Rs SDA SDA MASTER SLAVE Sx Tx/Rx Tx/Rx Sx P82B96 ...
Page 11 Philips Semiconductors Product data P82B96Dual bi-directional bus buffer TWISTED-PAIR TELEPHONE WIRES, USB, OR FLAT RIBBON CABLES. 3.3–5 V UP TO 15 V LOGIC LEVELS, INCLUDE VCC AND GND. SY 3.3 V 3.3 V ...
Page 12 Philips Semiconductors Product data P82B96Dual bi-directional bus buffer SO8: plastic small outline package; 8 leads; body width 3.9 mm SOT96-1 2004 Mar 29
Page 13 Philips Semiconductors Product data P82B96Dual bi-directional bus buffer DIP8: plastic dual in-line package; 8 leads (300 mil) SOT97-1 2004 Mar 29
Page 14 Philips Semiconductors Product data P82B96Dual bi-directional bus buffer TSSOP8: plastic thin shrink small outline package; 8 leads; body width 3 mm SOT505-1 2004 Mar 29
Page 15 Philips Semiconductors Product data P82B96Dual bi-directional bus buffer REVISION HISTORY Rev Date Description _4 Product data (9397 750 12932). Supersedes data of 2003 Apr 02 (9397 750 11351). Modifi...
Page 16 Philips Semiconductors Product data P82B96Dual bi-directional bus buffer Purchase of Philips I2C components conveys a license under the Philips’ I2C patent to use the components in the I2C system prov...

Manual Details

Brand Dual
Pages 16
File Size 162.19 KB
Published May 20, 2026
197 views

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Frequently Asked Questions

What are the main restrictions when wiring the Sx/Sy pins?

Two or more Sx or Sy I/Os must not be interconnected. The device does not support connecting multiple inputs together.

Can this buffer interface with IC-bus signals at different voltage levels?

Yes, it can interface IC-bus logic voltage levels of all IC parts and handles various bus standards like the SMB bus or 15V levels.

How much current can the Tx/Ty output pins sink?

The Tx/Ty outputs have a 60 mA sink capability, allowing them to drive low impedance or high capacitive buses.